Troubleshooting 25
FILE LOCATION: C:\Documents and Settings\sarah_cook\Desktop\Tsing
Ma\SM\A01\EN\Source\trouble.fm
DELL CONFIDENTIAL – PRELIMINARY 9/4/09 - FOR PROOF ONLY
securely inserted into the headphone connector. See the Setup and Quick Reference
Guide for your computer at support.dell.com.
A
DJUST THE WINDOWS VOLUME CONTROL — Click or double-click the speaker icon
in the lower-right corner of your screen. Ensure that the volume is turned up and that
the sound is not muted.
Video and Display Problems
CAUTION: Before you begin any of the procedures in this section, follow the
safety instructions that shipped with your computer.
NOTICE: If your computer came with a PCI graphics card installed, removal of the
card is not necessary when installing additional graphics cards; however, the card
is required for troubleshooting purposes. If you remove the card, store it in a safe
and secure location. For information about your graphics card, go to
support.dell.com.
C
HECK THE DIAGNOSTIC LIGHTS — See "Diagnostic Lights" on page 9.
C
HECK THE DISPLAY SETTINGS — See the Dell™ Technology Guide on your
computer or at support.dell.com.
A
DJUST THE WINDOWS DISPLAY SETTINGS —
Windows XP:
1
Click
Start
→
Control Panel
→
Appearance and Themes
.
2
Click the area you want to change or click the
Display
icon.
3
Try different settings for
Color quality
and
Screen resolution
.
Windows Vista:
1
Click
Start
→
Control Panel
→
Hardware and Sound
→
Personalization
→
Display Settings
.
2
Adjust
Resolution
and
Colors settings,
as needed.
Only part of the display is readable
CONNECT AN EXTERNAL MONITOR —
1
Shut down your computer and connect an external monitor to the computer.
2
Turn on the computer and the monitor and adjust the monitor brightness and
contrast controls.
If the external monitor works, the computer display or video controller may be
defective.
Contact Dell Support.
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